CN213294539U

CN213294539U - Jack base

Info

Publication number: CN213294539U
Application number: CN202021310659.4U
Authority: CN
Inventors: 黄立梅
Original assignee: 黄立梅
Current assignee: Shuozhou mutual power mechanical equipment Co.,Ltd.
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-05-28
Anticipated expiration: 2030-07-07

Abstract

The utility model discloses a jack base, which comprises a base frame, the fixed jack that is provided with in chassis upper portion center department, and the fixed branch that is provided with in chassis upper portion left side, the fixed handle that is provided with in branch upper portion, the fixed pivot that is provided with in chassis right side wall center department, the pivot outer lane is rotated and is provided with the action wheel, the fixed handle that changes that is provided with of action wheel side, and the action wheel side rotates and is provided with from the driving wheel, follow the fixed screw rod that is provided with of driving wheel inside, the screw rod runs through the chassis, screw rod surface slip is provided with the slider, the slider lower part is provided with the connecting rod, the connecting rod lower part is. The jack base is simple in structure, can conveniently transfer the jack through the lifting of the idler wheels, and is very stable when the jack is used for lifting.

Description

Jack base

Technical Field

The utility model relates to a hoisting equipment field specifically is a jack base.

Background

The jacks are divided into a mechanical jack, a hydraulic jack and the like, and the principles are different. In principle, the most basic principle on which a hydraulic drive is based is pascal's law, i.e. the pressure is uniform throughout the liquid. Thus, in a balanced system, a relatively small piston exerts a relatively small pressure on it, while a large piston exerts a relatively large pressure on it, which keeps the liquid still. Therefore, different pressures at different ends can be obtained by the liquid transfer, and the purpose of conversion can be achieved. The common hydraulic jack uses the principle to achieve the force transmission. The screw jack pulls the handle in a reciprocating way, the claw pushes the ratchet wheel to rotate in a clearance way, the bevel pinion drives the bevel pinion to rotate the lifting screw rod, and therefore the lifting sleeve can be lifted or descended to achieve the function of lifting tension, but the screw jack is not as simple as a hydraulic jack.

The large jack has larger mass and is not easy to move; when the jack is moved by wheels, the jack is likely to slide during lifting.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a jack base to solve the problem that the large jack provided by the background technology is not easy to move due to large mass; when the jack is moved by wheels, the jack is easy to slide during lifting.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a jack base, includes the chassis, the fixed jack that is provided with in chassis upper portion center department, and the fixed branch that is provided with in chassis upper portion left side, the fixed handle that is provided with in branch upper portion, the fixed pivot that is provided with in chassis right side wall center department, the pivot outer lane is rotated and is provided with the action wheel, the fixed handle that changes that is provided with of action wheel side, and the action wheel side rotates and is provided with from the driving wheel, from the fixed screw rod that is provided with in driving wheel inside, the screw rod runs through the chassis, screw rod surface slip is provided with the slider, the slider lower part is provided with the connecting rod, the connecting.

Preferably, the screw is provided with a first thread section, a second thread section, a third thread section and a fourth thread section, the lengths of two adjacent thread sections are the same, the turning directions are opposite, and a sliding block is arranged on the thread section in each turning direction.

Preferably, the connecting rods at the lower ends of the two adjacent groups of sliding blocks on the screw rod are connected to the same group of rollers together.

Preferably, the connecting rod and the sliding block as well as the connecting rod and the roller are hinged through a hinge shaft.

Preferably, the driven wheels are provided with two groups and are symmetrical about a vertical central axis of the bottom frame, and the driven wheels are connected with the driving wheel in a matched mode through gears.

Preferably, the support is provided with four groups, the support is symmetrical about the central axis of the underframe, and the support is connected with the underframe through welding.

Preferably, the rollers are provided with four groups, and the rollers are symmetrical about a central axis of the underframe.

Preferably, the bottom center of the underframe is arranged to be through.

Compared with the prior art, the beneficial effects of the utility model are that: when the utility model is used, when the jack is used for lifting, the support is contacted with the ground at the moment, because the support is provided with three groups, the support is symmetrical about the central axis of the bottom frame, the support is connected with the bottom frame by welding, and because the support is shorter, better stability can be kept; when needs remove the jack, rotate and change the handle, change and drive the action wheel and rotate, because the driving wheel is provided with two sets ofly, and follow the driving wheel about the vertical axis symmetry of chassis, and pass through gear fit connection from the driving wheel with the action wheel, two sets of screw rods begin to rotate simultaneously this moment, because the screw rod is provided with first screw thread section, the second screw thread section, third screw thread section and fourth screw thread section, and the same rotation direction of two adjacent screw thread section lengths is opposite, arrange a slider in the screw thread section of each rotation direction, because connecting rod and slider and connecting rod all are articulated through the articulated axle with the gyro wheel, the gyro wheel is put down slowly from the chassis inside this moment, when the gyro wheel contacts ground, the support was maked somebody's turn.

The utility model discloses simple structure can conveniently shift the jack through the lift of gyro wheel, and when using the jack-up, and is very stable.

Drawings

Fig. 1 is a schematic view of a main view structure of a jack base of the present invention;

FIG. 2 is a schematic view of the right-side structure of a jack base according to the present invention;

FIG. 3 is a schematic view of a screw structure of a base of a jack according to the present invention;

in the figure: 1. a chassis; 2. a jack; 3. a support; 4. a strut; 5. a handle; 6. a screw; 7. turning a handle; 8. a driven wheel; 9. a slider; 10. a connecting rod; 11. a roller; 12. a driving wheel; 13. a rotating shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a jack base comprises an underframe 1, the bottom center of the underframe 1 is through, a jack 2 is fixedly arranged at the upper center of the underframe 1, a support rod 4 is fixedly welded at the left side of the upper part of the underframe 1, a handle 5 is fixedly welded at the upper part of the support rod 4, a rotating shaft 13 is fixedly welded at the center of the right side wall of the underframe 1, a driving wheel 12 is rotatably arranged at the outer ring of the rotating shaft 13, a rotating handle 7 is fixedly welded at the side edge of the driving wheel 12, a driven wheel 8 is rotatably arranged at the side edge of the driving wheel 12, two groups of driven wheels 8 are arranged, the driven wheels 8 are symmetrical about the vertical central axis of the underframe 1, the driven wheels 8 are connected with the driving wheel 12 through a gear in a matching manner, a screw rod 6 is fixedly welded inside the driven wheel 8, the screw rod 6 is provided with a first, a slider 9 is arranged on each screw thread section in the rotation direction, connecting rods 10 at the lower ends of two adjacent groups of sliders 9 on the screw rod 6 are connected to the same group of rollers 11 together, the screw rod 6 penetrates through the chassis 1, the sliders 9 are arranged on the surface of the screw rod 6 in a sliding manner, connecting rods 10 are arranged on the lower portion of the slider 9, rollers 11 are arranged on the lower portion of the connecting rods 10, the rollers 11 are arranged in four groups, the rollers 11 are symmetrical relative to the central axis of the chassis 1, the connecting rods 10 are hinged to the sliders 9 and the connecting rods 10 are hinged to the rollers 11 through hinge shafts, a support 3 is fixedly arranged at the bottom of the chassis 1, the support 3 is provided with three groups, the.

The working principle is as follows: when the jack base is used, when the jack 2 is used for lifting, the support 3 is in contact with the ground, as the four groups of the supports 3 are arranged, the supports 3 are symmetrical relative to the central axis of the underframe 1, the supports 3 are connected with the underframe 1 by welding, and as the supports 3 are shorter, better stability can be kept; when jack 2 needs to be moved, rotating handle 7 drives driving wheel 12 to rotate, because it is provided with two sets from driving wheel 8, and from driving wheel 8 about the vertical axis symmetry of chassis 1, and from driving wheel 8 and driving wheel 12 pass through gear fit and be connected, two sets of screw rods 6 begin to rotate simultaneously this moment, because screw rod 6 is provided with first screw thread section, the second screw thread section, third screw thread section and fourth screw thread section, and the same handedness opposite of two adjacent screw thread section lengths, arrange a slider 9 on the screw thread section of each handedness, because connecting rod 10 and slider 9 and connecting rod 10 all articulate through the articulated axle with gyro wheel 11, gyro wheel 11 is put down slowly from chassis 1 inside this moment, when gyro wheel 11 contacts ground, support 3 was maked somebody a mere figurehead this moment, then can promote jack 2 through handle 5 and.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A jack base, includes chassis (1), its characterized in that: a jack (2) is fixedly arranged at the center of the upper part of the underframe (1), a supporting rod (4) is fixedly arranged at the left side of the upper part of the underframe (1), a handle (5) is fixedly arranged at the upper part of the supporting rod (4), a rotating shaft (13) is fixedly arranged at the center of the right side wall of the chassis (1), a driving wheel (12) is rotatably arranged on the outer ring of the rotating shaft (13), a rotating handle (7) is fixedly arranged on the side edge of the driving wheel (12), a driven wheel (8) is rotatably arranged at the side edge of the driving wheel (12), a screw rod (6) is fixedly arranged in the driven wheel (8), the screw (6) penetrates through the bottom frame (1), the surface of the screw (6) is provided with a sliding block (9) in a sliding way, the lower part of the sliding block (9) is provided with a connecting rod (10), the lower part of the connecting rod (10) is provided with a roller (11), and the bottom of the chassis (1) is fixedly provided with a support (3).

2. A jack base as claimed in claim 1 wherein: the screw (6) is provided with a first thread section, a second thread section, a third thread section and a fourth thread section, the lengths of two adjacent thread sections are the same, the turning directions are opposite, and a sliding block (9) is arranged on the thread section in each turning direction.

3. A jack base as claimed in claim 2 wherein: and the connecting rods (10) at the lower ends of the two adjacent groups of sliding blocks (9) on the screw (6) are connected to the same group of rollers (11) together.

4. A jack base as claimed in claim 1 wherein: the connecting rod (10) is hinged with the sliding block (9) and the connecting rod (10) is hinged with the roller (11) through hinge shafts.

5. A jack base as claimed in claim 1 wherein: driven wheel (8) are provided with two sets ofly, and follow driving wheel (8) and be symmetrical about the vertical axis of chassis (1), and follow driving wheel (8) and drive wheel (12) and pass through the gear cooperation and be connected.

6. A jack base as claimed in claim 1 wherein: the support (3) is provided with four groups, the support (3) is symmetrical about the axis in the bottom frame (1), and the support (3) is connected with the bottom frame (1) through welding.

7. A jack base as claimed in claim 1 wherein: four groups of rollers (11) are arranged, and the rollers (11) are symmetrical about the central axis of the bottom frame (1).

8. A jack base as claimed in claim 1 wherein: the bottom center of the bottom frame (1) is through.